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I ran the following code in order to create a simple presentation.

 \documentclass[11pt]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usetheme{default}
\begin{document}
    %\author{}
    %\title{}
    %\subtitle{}
    %\logo{}
    %\institute{}
    %\date{}
    %\subject{}
    %\setbeamercovered{transparent}
    %\setbeamertemplate{navigation symbols}{}
    \begin{frame}[plain]
    \maketitle
\end{frame}

\begin{frame}
\frametitle{}
\end{frame}
\end{document}

But, I got the following error.

Sorry, but pdflatex.exe did not succeed. The log file hopefully contains the information to get MiKTeX going again: C:/Users/AA/AppData/Local/MiKTeX/2.9/miktex/log/pdflatex.log You may want to visit the MiKTeX project page, if you need help.

Error: Command crashed: pdflatex.exe -synctex=1 -interaction=nonstopmode "texstudio_TW8220".tex

Process exited with error(s)

I clicked the C:/Users/AA/AppData/Local/MiKTeX/2.9/miktex/log/pdflatex.log and it includes the following writings. 2018-04-23 17:47:29,008+0300 INFO pdflatex - mpm: extracting files from beamer.tar.lzma... 2018-04-23 17:47:32,549+0300 FATAL pdflatex - The installed file does not exist. 2018-04-23 17:47:32,549+0300 FATAL pdflatex - Info: fileName="C:\Program Files\MiKTeX 2.9\tex\latex\beamer\translator\translator.sty" 2018-04-23 17:47:32,549+0300 FATAL pdflatex - Source: Libraries\MiKTeX\Core\Session\findfile.cpp 2018-04-23 17:47:32,549+0300 FATAL pdflatex - Line: 55 2018-04-23 17:47:32,550+0300 INFO pdflatex - finishing with exit code 1

How can I solve the problem?

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